Dwtn ii



(No Model.)

v E. H. FORD. AUTOMATIC GAS REGULATOR AND GUT-OFF,

No 395,387. 'Panentd. Jan, 1, 1889..

3 a 5 Q? P H Ml E12 HFQIZ.

Lil

' lJNitED STATES nnwIN u. noun, or" na AUTOMATIC GAS REG SPECIFICATION forming part of Letters PATENT OFF CE.

n'rrono tt'rv, IXDIAXA;

ULATOR A ND CUT-OFF.-

Patent No. 395,387, dated January 1, 1889.

Application filed February 27, 1888. Serial No. 265,503. (No inotlel.)

To all who/a ('1 may concern.-

lie it known thatL'Ifl'DtVIN ll. Foan,acitizen ol' the United Statesot America, residing at llart ford (it v, in the county of .Blaektord and State of lndianh, have invented ccrtaiii new and useful Improvements in Automatic (ias Regulators and (tit-Otis, of which the fol lowing is a specification, reference being had therein to the accompanying drawings.

My invention relates to mechanism for an tomatieally regulatingand cutting off the flow l it. is well known that where there is a large number of users from the same well it somellllltfillitpptiis that the pressure becomes so low that the tires and lights are putout by sudden put't's, when the' will escape into the room. l nder these circumstances, if the room is closed and left unoccupied for Soine time, there will be imminent danger of an explosion on entry with alight.

To provide an automatapparatus which 'i will eltetiwtuz'ill y govern the pressure of the gas delivered to the points of consumption, and

l i which will also-cut off the gas entirely when the pressure becomes so low asto endanger the extingnislunent of the tire or lights in the manner above stated, is theobject oi: my invention, which will first be described in conneetion wit h the accompanyingdrawings, and then clearly pointed out in the elaims.

In the drawings, Figure l is a longitudinalseetion of my apparatus, showing theregula tor under pressure and the cut-off out of operat ire position. Fig. 2 is a like section of so much of theapparatusas is necessary toshow.

the regulator relieved of pressure' and the cutoff in operative position. tail plan view of the eut-off-arm,

Referring to the drawings, A A represent the shell of the apparatus, cast of any suit able metal, and united together by bolts 17, passing through lugs (I, cast: at intervals. The upper portion, A, of tlris shell (assuming,

Fig. 3 isa de-- I I and squaredjat its outer l for the purpose of convenient description, the shell to be in a vertical. position) has a hollow extension, 1- in the upper end of which is sermved a eup shaped plug, (T, leaving a chamber, l), in the extension, and a nipple, E, on which to attach the pipe for conveying the gas to the place of use,communicates with this chamber in the manner shown. This nipple I prefer to cast integral with the shell;

screwed therein. The portion A of the shell has also a hollow ncek, l ,extending from the ot' the shell some distance, fora pu'rposewhieh will presei'itly appear.

G represents a dia 'ihragm, com posed of. rubber, oiled silk, opotlwr impervious to'gas, which is firmly tween the portions A on top of this diaphragm there is a light metallic supporting-plate, ll, both the diaphragm and plate being clamped bet 'een a collar, 1:, on the regulator-tube and a washer, 11', made fast to said tube in any suitable manner.

I represents the regulator-tube, provided secured beopposite sides. This tube istot' such size as to iit and reciprocate neatly in the neck F, its lower end extending below the ('liaphragm. A spiral spring, J, surrounds this tube, one of its ends resting on the collarc and its other enden gaging with the upper part.- of the neck F, the function of this spring being to hold the regulator-tube normally down on its seat.

X represents the regulator-valve forengage- .ment with the outlet end ot' tube, I for the purpose ofi governing the, flow'of 'gas through said tube. t The "valveis; made conical at its -inn'er -end, a-statsl, andaboxe the conical portiolrit is cylindrical, asatf wrench, the screw tlireatled reception of "a 7 through the screw-plug G, the

portion passing of the valve from injury. l tion, AZ-of the shell there is casta bracket,

but it is evident it maybe separate and lower end of chamber 1) down in tio the body.

like flexible materialand A of the shell, {indthis latter portion being s ghtly less than the bore of: the regulator-tube'.'-' Itis provided with a; collar, 3, for limiting its upward mqvemerit-when inplace-the valve being screw. threaded for a'portion. of its length ,.-as at 4,;

end, as at 1 5, for the q walls ofwhich protect the projecting portion I In. the lower pornearits lower end with lugs ,i on two of its.

0 the ldiameter 0t.

too

the latter down onto its seat s.

I, one end of whieh isattaehed to the handle,

on its under side, a slot, 7,,

through \vhieh passes a serew, H, tha takes into the braeket L, and upwardly-iuelined tingers fl, adapted, when the arm is thrown t'orward, to ride over lugs 1 on tube 1 and earry i A coil-spring,

while its other end bears against the end of projection M, serves to thus throw the arm t'orward.

Q represents a right-angular lever pivoted at H and pressed upward by a spring, l l.attaehed to the braeket L. The free end of this lever rests normally in the same plane with the diaphragm when the latter is not under pressure, but is direetly underthe washer 11. The lever is also provided with a eateh, l2.

disengage the lingers-t) from the lugs on the tube, engages with the abutment t; and holds the arm in a retracted position.

lever engages with the abutment on however, the eut-otl' plays its part, for as soon as the pressure is so far redueed as to allow the diaphragm to assume a horizontal position, as seen in Fig. 2, the washer '11 will bear on the end of lever Q, depressing it and causing eateh 12 to be withdrawn from engagement. with the abutment ti on arm ()(when thelatter will spring Forward and bear the tube ldown onto its seat, thus shutting ott' the gas entirely. To reset the eut-ottitisonly necessary to draw out the handle until the eateh on the the arm, as will be manitest from Fig. 2. Y

llavingthus deseribed my invention, what I elaini as new, and desire to seeure by lletters latent, is

which, when the handle is drawn out, so asto Ris thesuppLv-pipe, serewed into theshell. 3 The operation of my apparatus is as follows: The valve is lirst'set to pass the desired volume of gas. Then, as the pressure on the diaphragm increases, the regulatortube is earried upward over the eonieal valve,

and the farther it passes over it the less gas is admitted to ehamber l) and thence to the burners, so t hat itt he pressure is too heavy but a comparatively small uant ity o t gas will pass the valve, and the pressure of that which does pass will be greatly reduced when it reaches the ehamber. pressure is no greater than unseat the tube, the gas will go through the regulator at about its original pressure, dependent, of course, on the setting of the valve. liver a small quantity of gas, the pressure should materially decrease, the llame in the stove or burner would very probably be extinguished by the sudden putt's of gas whieh On the eontrary, it the is necessary to Now, if after the. valve is setto tiel i l often occur, and unless immediately relighted the gas would escape into the room. Here,

I. 'lheeonibination, with a shell provided with inlet and outlet pipes for the. gas, and a tubeseat, as deseribed, ot' a tievible diaphrt'igm, a s n-ing-pressed reei n-oeating tube seeured to the diaphragm, an adjustable valve with whieh said tube eoaets, a reciprocating spring-aetitated arm, and a springpressed lever adapted to hold said arm out of contaet with the tube while pressure is on the diaphragm. and also to release it and allowit to engage with the tube and seat it when pressure is oti', snbstant ially as set forth.

3. ln an autolnatieregulat-or and (-ut-ot't', as described, the combination, with the adjustiable valve, the flexible diaphragm, the springpressed reeiprotating tube attaehed to the diaphragm, a eollar and lugs on said tube, a supporting-plate between the eollar and diaphragm, a. washer below the diaphragm and secured to the tube, and a tube-seat, of a re- 

